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Acid Black 172

Acid Black 172 is an acid dye widely used for dyeing wool, nylon, silk, and blends. It provides a deep black shade with good leveling properties and consistent penetration, making it suitable for textiles and leather applications.

Acid Black 172 Appearance is dark brown powder. Soluble in water, solubility in water is 100g / L (90 ° C).

TRADE NAME:Acid black M-R,Acid black L-DN

Key Features

  • ‍Strong black shade with high color depth
  • Good solubility in water
  • Even dyeing with excellent leveling ability
  • Suitable for wool, nylon, silk, and blends
  • Stable performance in acidic dye baths‍

Technical Specifications

  • ‍CAS NO: 61847-77-6/57696-14-8
  • CI.NO: 15711:1
  • Molecular Formula: C20H12N3NaO7S
  • Molecular Weight: 461.38
  • Shade: Black.‍

Testing method

Fiber

Chlorination discoloration

Seawater discoloration

Soap wash discoloration

Perspiration

Light fastness

ISO

wool

5

5

4~5

5

7

Colour Fastness Test

Soaping

ISO105-C06-B2S (50℃)

Flooding

ISO105-E01

Alkali perspiration

ISO105-E04

Light fastness

ISO105-B02

Rubbing

ISO105-X12

Color change

nylon stain

cotton stain

Color change

nylon stain

cotton stain

Color change

nylon stain

cotton stain

0.5%

(owf)

2.0%

(owf)

dry

wet

4~5

5

4

5

5

5

5

5

5

6

6

5

5

Application:

Acid Black 172 Used for silk, wool, polyamide fiber and their blended fabric dyeing and printing directly, also can used for leather dyeing.

It is used for dyeing and direct printing of wool, silk, nylon and blended fabrics, and can also be used for dyeing leather.

FAQ

What materials can Acid Black 172 dye effectively?

It is primarily used on wool, nylon, silk, and blended fabrics, providing deep and uniform black shades.

How soluble is Acid Black 172 in water?

It has good water solubility, allowing for easy preparation of dye baths and consistent application.

Does Acid Black 172 provide even dyeing results?

Yes, it has excellent leveling ability, ensuring uniform shade distribution across fibers without patchiness.

Can Acid Black 172 be used in leather dyeing?

Yes, its strong penetration and deep coloration make it suitable for leather finishing and dyeing processes.

What is the advantage of using Acid Black 172 over other black dyes?

It provides a strong, rich black with stable performance in acidic baths, offering reliable results for both textiles and leather.

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